1085157678231 has 48 divisors (see below), whose sum is σ = 1734351989760. Its totient is φ = 648287640000.

The previous prime is 1085157678221. The next prime is 1085157678281. The reversal of 1085157678231 is 1328767515801.

1085157678231 is a `hidden beast` number, since 10 + 8 + 51 + 576 + 7 + 8 + 2 + 3 + 1 = 666.

1085157678231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1085157678231 - 2¹⁸ = 1085157416087 is a prime.

It is a super-2 number, since 2×1085157678231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085157678221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50253585 + ... + 50275173.

It is an arithmetic number, because the mean of its divisors is an integer number (36132333120).

Almost surely, 2^{1085157678231} is an apocalyptic number.

1085157678231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1085157678231 is a deficient number, since it is larger than the sum of its proper divisors (649194311529).

1085157678231 is a wasteful number, since it uses less digits than its factorization.

1085157678231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28828 (or 28825 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 1085157678231 in words is "one trillion, eighty-five billion, one hundred fifty-seven million, six hundred seventy-eight thousand, two hundred thirty-one".